A variational theory of Hall effect of Anderson lattice model: Application to colossal magnetoresistance manganites (Re1−x Ax MnO3)

2017 ◽  
Vol 266 ◽  
pp. 50-54 ◽  
Author(s):  
Sunil Panwar ◽  
Vijay Kumar ◽  
Ishwar Singh
Keyword(s):  
Hall Effect ◽  
Lattice Model ◽  
Colossal Magnetoresistance ◽  
Variational Theory ◽  
Model Application

PHONON-ENHANCED KONDO LATTICE MODEL IN COLOSSAL MAGNETORESISTIVE MANGANITES

2006 ◽  
Vol 20 (01) ◽  
pp. 25-29
Author(s):  
JE HUAN KOO ◽  
GUANGSUP CHO
Keyword(s):  
Lattice Model ◽  
Colossal Magnetoresistance ◽  
Manganese Oxides ◽  
Kondo Lattice ◽  
Colossal Magnetoresistive ◽  
Hole Conduction ◽  
Kondo Lattice Model ◽  
Jahn Teller ◽  
Peierls Transition

We investigate theoretically manganese oxides where the colossal magnetoresistance (CMR) is observed. Recent studies show that, if there are both an electron and a hole in the eg-band of Mn , the Jahn–Teller distortions split the band into a conduction band [Formula: see text] and a localized band [Formula: see text]. We find a Kondo lattice model with hole conduction in manganese oxides when the electron in the localized eg-band [Formula: see text] plays the role of the Kondo impurity. The Curie temperature (Tc) and the resistivity are calculated. We also calculate the antiferromagnetic temperature by a spin-Peierls transition.

scholarly journals Bosonic Integer Quantum Hall Effect in an Interacting Lattice Model

2015 ◽  
Vol 115 (11) ◽  
Author(s):  
Yin-Chen He ◽  
Subhro Bhattacharjee ◽  
R. Moessner ◽  
Frank Pollmann
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Lattice Model ◽  
Quantum Hall ◽  
Integer Quantum Hall Effect ◽  
Integer Quantum

VARIATIONAL THEORY OF CORRELATED FERMI-LIQUID STATE IN THE KONDO LATTICE MODEL

1991 ◽  
Vol 05 (01n02) ◽  
pp. 289-308 ◽  
Author(s):  
Patrik FAZEKAS ◽  
Hiroyuki SHIBA
Keyword(s):  
Ground State ◽  
Lattice Model ◽  
Fermi Liquid ◽  
Kondo Lattice ◽  
Variational Theory ◽  
Conduction Electrons ◽  
Kondo Lattice Model ◽  
Liquid Type ◽  
Electron Clouds ◽  
Variational Wave

A variational wave function is constructed and studied for the spin-compensated Fermi-liquid-type ground state in the Kondo lattice model. The spins of the localized f-electrons are compensated by overlapping conduction-electron clouds. In accordance with Luttinger’s theorem, the volume enclosed by the Fermi surface corresponds to the total number of electrons, i.e., it includes the f-electrons as well as the conduction electrons. An approximate analytic treatment of the correlated heavy Fermi liquid is given by using the Gutzwiller approximation.

scholarly journals Integer quantum Hall effect in a lattice model revisited: Kubo formalism

2012 ◽  
Vol 112 (4) ◽  
pp. 044306 ◽  
Author(s):  
Paramita Dutta ◽  
Santanu K. Maiti ◽  
S. N. Karmakar
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Lattice Model ◽  
Quantum Hall ◽  
Integer Quantum Hall Effect ◽  
Integer Quantum

Underscreened Kondo lattice model versus underscreened Anderson lattice model: Application to uranium compounds

2009 ◽  
Vol 404 (19) ◽  
pp. 2961-2963 ◽  
Author(s):  
B. Coqblin ◽  
J.R. Iglesias ◽  
N.B. Perkins ◽  
Acirete S. da R. Simoes ◽  
Christopher Thomas
Keyword(s):  
Lattice Model ◽  
Kondo Lattice ◽  
Model Application ◽  
Uranium Compounds ◽  
Kondo Lattice Model ◽  
Model Versus
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